George rehfuss



G. REHFUSS.

Hemmer for Sewing Machines.

No. 80,090. y l Patented'luly 21,` 1868.

i @uitrit tates gsttmt ffies.

GEORGE REHFUSS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO AMERICANBUTTON- HOLE OVERSEAMING AND SEWING-MACHINE COMPANY. i y

Leiters Patent No. 80,090, elated July 21, 1868.

IMPROVEMENI IN HEMMER FOR SEWING-MACHINES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE REnrUss, of Philadelphia, Pennsylvania, haveinvented an Improvement in Hemming-Devices for Sewing-Machines; and I dohereby decla-re the following to be a full, clear, and exactdescription-of the same. i

My invention consists of a device, fully described hereafter, to beappliedv to a. presser-bar of a. sewingmachine, for turning over theedge of a fabric, and forming the same into a. hem, before it reachesthe needle.

In order to enable others skilled in the art to make and use myinvention, I will now proceed to describe its construction andoperation, reference being had to the accompanying drawing, which formsa part of this specifica-tion, and in which- Figure 1 is a plan view ofmy improved hemming-device for scwingmachines.

Figure 2, an inverted plan view.

Figure 3 a perspective view of the device, inverted, and

Figure 4 a side view.

A is a metal plate, which is bent as shown in the drawing, and isslotted at one end, to receive a screw, by which it is secured to thepresser-bar of a sewing-machine, in place ofthe usual presser-foot.

At one edge of the plate is a recess', a, for the passage of the needleof the machine, and this edge, ata point adjacent to the said recess, isent away, so as to leave aprojeetion, c, and a thin lip, e, the outerodge, y, ofthe latter being curved, and the end :c of the lip being ashort distance from and parallel to one edge of the projection c, whichis inclined,'as shown in tig, 3 of the drawing.

The under side of the plate, near its outer end, is out away, so as toform a recess, t, the edge y' of the recessed-portion ofthe plate beingcurved or inclined, to rnee't, or nearly meet, tleedge y of the lip e,but being a short distance above the latter, so as to form a shoulder,g, at the point ofjunction, as shown in iig. 4.

To the under side ofthe plate, at its outer end, is secured one end of aspring, d, which extends from beneath the end of the plate A, across andbelow the edge y', over the lip e, to the projection c, against theinclinedside of which theouter end of the spring bears. It is, however,free from contact with the said plate A, except at the point where it isconnected to the saine, and at its outer end, (13g. 4.) i t The fabricto be hommed is turned over at one edge to form a. fold of the desiredwidth `and is passed between the spring d and the` plate A, so that thefolded portion may lie againstthe under sideV o`f the said spring, asshown in iig. 3. l, i

As the fabric (shown by red lines, fig. 2) is carried by the movement ofthe feeding-mechanism in the direction of its arrow, its edge will passfirst between the spring d and the under -side of the plate A, thenagainst the` shoulder q, by which it is turned slightly downward, andthen against the, inclined edge y of the lip e, by which it is turnedcompletely over, and thence, beneath the under side of the sp'rin'g d,after which, it passes between the projection c andthe work-plate, andthen beneath the recess a, when the heur is subjected to the actionofthe needle and thread.

Without confining myself to any precise lform of the plate A, I claim,as my invention, and desire to secure by Letters Patent- I 4 Thewithin-described hemming-device, consisting of the plate A and thespring cl, constructed as shown,

and arranged and operating substantially as and for the purpose hereinset forth. 1

In testimony whereof, Ihave signed my name to this speciiication in thepresence of two subscribing witnesses.

GEO. REHFUSS.

Witnesses:

CHARLES E. Fosrnn W. J. R. DELANY.

